A control device for electrical or mechanical equipment in the form of a wheel operated with the thumb.
- You can also use a thumbwheel to toggle between programs or launch new ones.
- The monochrome screen is easy to read, and the clickable thumbwheel control permits scrolling through programming and feature menus readily enough.
- But the thumbwheel makes you feel like you're in control.
For editors and proofreaders
Line breaks: thumb|wheel
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